Owner's Manual

3-4
Managing Power
The charging times are as follows:
Battery Type
Charging Time
Computer is Off Computer is On and
in Video Playback State
6-cell (4 A) 2.5~3 hours 3~3.5 hours
9-cell (4 A) 3.5~4 hours 3.5~4 hours
CAUTION: After the computer has been fully recharged, do not
immediately disconnect and reconnect the AC adapter to charge it again.
Doing so may damage the battery.
NOTE: The battery level may automatically lessen due to the self-discharge
process (0.21 % per day), even when the battery pack is fully charged (100
%). This happens no matter if the battery pack is installed in the computer.
Initializing the Battery Pack
You need to initialize a new battery pack before using it for the first time or
when the actual operating time of a battery pack is much less than expected.
Initializing is the process of fully charging, discharging, and then charging. It
can take several hours.
A tool called “Gauge Reset” is provided for the purpose. See “Gauge Reset”
in Chapter 6 for information on using the tool.